Mantis Bug Tracker
Main | My View | View Issues | Change Log | Roadmap | Repositories | My Account
  

View Issue Details [ Jump to Notes ] [ Issue History ] [ Print ]
IDProjectCategoryView StatusDate SubmittedLast Update
0000108MPfmPlayerpublic2011-05-22 09:312012-04-21 09:54
Reporterycastonguay 
Assigned Toycastonguay 
PriorityimmediateSeverityblockReproducibilitysometimes
StatusresolvedResolutionfixed 
PlatformOSOS Version
Product Version0.4.4.3 
Target Version0.4.4.5Fixed in Version0.4.4.5 
Summary0000108: Since the switch to gapless, the stream sometimes lags out
DescriptionIt's hard to reproduce but it happens every 2 minutes or something like that. I'm using Frank Zappa's Joe Garage FLAC to reproduce the problem.

It's hard to believe the audio can lag out on a i7?
TagsNo tags attached.
Attached Files

- Relationships

-  Notes
(0000027)
ycastonguay (administrator)
2011-05-22 09:34

 I've read the FMOD forums and documentation, and system::setStreamBufferSize might help. The default is 16384 in FMOD_TIMEUNIT_RAWBYTES. Try to boost this. This shouldn't take much more memory.

There is also a memory leak bug that might create this problem (see 0000107)
(0000029)
ycastonguay (administrator)
2011-05-22 09:41

 I've used the setStreamBufferSize and used 512 * 1024 for value. The application is using 60MB of RAM, which is not too bad considering the application is using the .NET framework.

So far I haven't reproduced the problem with this fix, but I'll leave this bug open for a while because it is hard to reproduce.

Maybe it would be a good idea to add a configurable value in Settings and in the settings file.
(0000031)
ycastonguay (administrator)
2011-05-22 10:51

 Maybe this is related to frequency/bit rate. 24/96 files seem to skip more than 16/44.

Maybe the buffer should be set higher for bigger files (WAV, FLAC) with higher bitrates?

I've put down the value to 64 * 1024. Setting a too high value might not be better.
(0000032)
ycastonguay (administrator)
2011-05-22 11:40

 Interesting thread on the subject:
http://www.fmod.org/forum/viewtopic.php?f=7&t=7666&p=30024&hilit=stream+stutter#p30024 [^]

So try to increase the DSPBufferSize too. Maybe the system->update is too long?

Can it be driver related? (i.e. ASIO)?
(0000041)
ycastonguay (administrator)
2011-05-29 08:56

 Some of the FLAC files I was testing with (Frank Zappa's Sheik Yerbouti) were badly ripped and I thought the skips were because of the player.

The code has been left untouched for a week and it works perfectly now. Closing the task.

- Issue History
Date Modified Username Field Change
2011-05-22 09:31 ycastonguay New Issue
2011-05-22 09:31 ycastonguay Status new => assigned
2011-05-22 09:31 ycastonguay Assigned To => ycastonguay
2011-05-22 09:34 ycastonguay Note Added: 0000027
2011-05-22 09:41 ycastonguay Note Added: 0000029
2011-05-22 10:51 ycastonguay Note Added: 0000031
2011-05-22 11:40 ycastonguay Note Added: 0000032
2011-05-23 10:43 ycastonguay Target Version 0.4.4.4 => 0.4.4.6
2011-05-29 08:56 ycastonguay Note Added: 0000041
2011-05-29 08:56 ycastonguay Target Version 0.4.4.6 => 0.4.4.5
2011-05-29 08:56 ycastonguay Status assigned => resolved
2011-05-29 08:56 ycastonguay Fixed in Version => 0.4.4.5
2011-05-29 08:56 ycastonguay Resolution open => fixed
2011-05-29 10:58 ycastonguay Category Global => Gapless Playback
2012-04-17 19:11 ycastonguay Category Gapless Playback => Player - Gapless Playback
2012-04-21 09:54 ycastonguay Category Player - Gapless Playback => Player

Copyright © 2000 - 2011 MantisBT Group
Powered by Mantis Bugtracker